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PATENTED FEB. 9, 1904.

0. G. WORSLEY.

PUMP.

APPLICATION FILED APR. 3. 1903.

N0 MODEL.

UNITED STATES Patented February 9, 1904.

PATENT OFFICE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 751,596, dated February9, 1904.

Application filed April 3, 1903. Serial No. 150,863. (No model.)

To all whom it new concern:

Be itknown that I, OTTO Gr. l VoRsLEY, a citizen of the United States,and a resident of Newark, county of Kendall, and State of Illinois, haveinvented certain new and useful Improvements in Pumps, of which thefollowing is a specification and which are illustrated in theaccompanying drawings, forming a part thereof.

This invention relates to that class of pumps which are used in drilledwells, the objects of the invention being to provide an anchorage forthe pump and an improved packing for the barrel thereof. These objectsare attained in the structure hereinafter described and which isillustrated in the accompanying drawings, in which Figure 1 is alongitudinal section, partly in elevation, of the pump and thewell-casing. Fig. 2 is a detail longitudinal section of the pump, partlyin elevation. Fig. 3 is a detail elevation of the valve-casing of thepump, partly in section. Fig. 4: is a transverse section on the line 4:of Fig. 2. Fig. 5 is a detail of the head of the wrench and grapple usedin connection with the pump, partly broken away. Fig. 6 is a detailelevation showing the inner face of one leg of the wrench and grapple,and Fig. Tisadetail of the sucker rod and valve.

In pumps of this character ithas heretofore been the practice to place astrainer or other support at the bottom of the well-casing and rest thepump thereupon, and it has been the common practice to locate apacking-ring at the lower end of the pump-barrel to prevent the waterfrom leaking back around the barrel. As a result of this practice it hasbeen impracticable to locate the pump elsewhere than at the bottom ofthe well, although water might rise, the "ein having once been found, aconsiderable distance. A disadvantage incident to the location of thepacking-ring at the lower end of thepump-barrel arises from the fillingin of the sand around the barrel, which becomes so completely impactedthat it is practically impossible to remove the pump without destroyingits barrel. These difficulties and others are overcome and theconstruction and manipulation of the pump simplified by theherein-described structure.

The well-casing, which of course forms no part of this invention, isshown at 10. The pump-barrel 11 is an open-ended tube, usually of brass.The valve-casing 12 is screwed into the lower end of the barrel. Thesucker rod and valve are shown at 13 and are of ordinary construction.The wrench and grapple is shown at 14:.

. The pump-anchor comprises a plurality of outwardly-bowing spring-bars15, the lower ends of which flare outwardly, constituting gripping-toes16, adapted to bite into the casing 10. The packing-ring 17, preferablyof rubber, encircles the upper portion of the barrel 11 and isinterposed between a shoulder 18 thereof and a ring 19, looselyencircling the pump-barrel and to which the upper ends of the bars 15are secured. The shoulder 18 is preferably formed by flaring the upperend of the pump-barrel, so that as the barrel is drawn downwardlythrough the ring the latter will be expanded by the increasing size ofthe barrel.

The valve-casing 12 is preferably formed with an annular shoulder 20,adapted to abut against the end of the barrel 11, and after the casinghas been screwed into the barrel the two are locked against rotation bymeans of a pin 21, set through the barrel and an upwardly-extendingshank 22 of the valvecasing.

Near their lower ends the bars 15 are united by means of a ring 23,which is internally threaded and runs upon a threaded downward extension24 of the valve-casing 12. The lower end of this extension is withoutthreads and serves as an expander to engage the angle 26 of theinwardly-bent toe portions 16 of the bars 15. I

Preliminary to the lowering of the pump into the well-casing the severalparts are assembled. The valve-casing 12 having been secured within thelower end of the barrel and the ring 17 having been mounted thereupon,the pump, which may be said to consist of the barrel and thevalve-casing, is inserted into the anchored cage, passing freely throughthe ring 19 and being screwed into the ring 23, but not a suflicicntdistance to engage the toes 16. Normally the bars 15 bow outwardlybetween the rings 19 and 23, giving the cage a greater diameter than thewell-casing, while the toes 16 are contracted, so that their extremeends are spaced diametrically a less distance than the diameter of thecasing. The pump and its cage having been forced into the casing againstthe resistance of the bowed bars 15 is lowered to the position at whichit is to be anchored and then being turned is screwed down into the ring23, the friction of the bars 15 against the casing preventing the cagefrom turning, the expander 25 forcing the toes 16 outwardly and intoengagement with the casing and the shoulder 18 being drawn into oragainst the packing-ring 17, so as to expand the latter. The pump is notonly securely anchored by the engagement of the toes, butis perfectlypacked. The pump may of course be readily removed or shifted up or downin the casing by turning it back in the cage so as to release the toesl6 and disengage the packing-ring 17. i

The pump is controlled by means of a bifur cated wrench or grapple 14,which fits down upon the upwardly-projecting stem 22 of the valve-casing12 and is provided with shoulders 28 29, extending inwardly fromopposite sides of its legs, each shoulder extending approximatelyhalf-way across the leg upon which it is formed. The stem 22 is providedwith corresponding shoulders 30 31, similarly disposed, so that they maybe engaged by the shoulders 28 29.

Leaf-springs 32 33 are secured to the inner faces of the legs of thewrench or grapple and extend inwardly from their ends, each spring beingopposite the shoulder upon the other leg and its free end being inclinedtoward the same. By the action of these springs the shoulders of thewrench and valve casing stem are held in engagement. The wrench isdisengaged from the valve-casing by being simultaneously turned againstthe resistance of the springs 32 and 33 and pulled upwardly,

being controlled by a rod 27. The stem 22 is apertured, as shown at 34,t0 provide clearance for the Valve, the stem of which is shown at 35.

Even though the pump be located near the bottom of the well a straineris ordinarily not required, for the reason that as no support is locatedbelow it there is an unobstructed passage for the water the full widthof the casing, so that the water is drawn up so slowly that the'sand isnot agitated.

I claim as my inventionl. A pump-supporting anchor having a threaded nutand radially-movable wall-engaging toes, and an expander in threadedengagement with the nut, and detents secured to the nut and adapted toengage the well-casing to hold the nut against rotation.

2. A pump-anchor comprising a top and bottom ring, outwardly-bowingspring-bars attached to the rings and having theirlower ends prolongedbeyond the ring and bent inward and then outward.

3. In combination, a pump-anchor having outwardly-bowed spring-bars andoutwardly, flaring toes bent inward between their ends, and a pump ofless diameter than the anchor but of greater diameter than the normaldiametric distance between the bends of the toes thereof.

4. In combination, a pump-anchor having an internally-threaded ring,longitudinal outwardly-bowing spring-bars and inwardly-bent flaringtoes, and a pump having its lower end threaded to engage theanchor-ring.

5. In combination, a cage having athreaded ring, a pump having threadedengagement with the ring and having an annular shoulder, and anexpansible packing-ring located between the pump-shoulder and a portionof the cage.

6. In combination, a pump-anchor having an internally threaded bodyportion, outwardly-bowing longitudinal springs, and radially-movablesupporting-toes; a pump-body having a tapering portion and being inthreaded engagement with the anchorwbody; and an expansible packing-ringinterposed between the tapering portion of the pump-body and the anchor.

7. In a pump, a barrel having a flaring upper end; an anchor-cagecomprising an upper ring loose upon the barrel, a lower ring in threadedengagement with the barrel, springbars secured to the two rings andbowing outward therebetween and radially-projecting gripping-toes attheir lower ends such toes being bent inward between their ends; apacking-ring interposed between the upper ring and the flaring portionof the barrel; and an expander at the bottom of the barrel and engagingthe bent portion of the toes.

8. In a pump, in combination, an anchorcage having radially-movablegripping-toes; a barrel in threaded engagement with the cage and havingan expander cooperatingwith the toes; an upwardly-projectingflattened'stem attached to the barrel and having lateral shoulders; anda wrench and grapple recessed to receive the stem and having internalshoulders cooperating with the shoulders of the stem.

OTTO Gr. \VORSLEY.

